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Korean Journal of Chemical Engineering

, Volume 18, Issue 1, pp 33–39 | Cite as

Morphology evolution in PS/LDPE blends in a twin screw extruder: Effects of compatibilizer

  • Do Young Moon
  • Moo Hyun Kwon
  • O Ok Park
Article

Abstract

In order to understand the mixing in polymer extrusion, the morphology of PS/LDPE blends compatibilized with SEBS was simulated based on the Lee and Park model. Experiments were performed in a co-rotating twin screw extruder and a Haake mixer, and the morphology of the compatibilized blends of various compositions was compared with the non-compatibilized ones. The size of the dispersed phase of the compatibilized blend was smaller than the non-compatibilized one, and the blend of the PE matrix had a smaller size in the dispersed phase than the non-compatibilized one. Simulation results were agreed well with experiments, and the Lee and Park model could be applied in the extrusion analysis of compatibilized polymer blends.

Key words

Morphology PS/LDPE Blend Compatibilizer SEBS Extruder Lee and Park Model 

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Copyright information

© Korean Institute of Chemical Engineering 2001

Authors and Affiliations

  1. 1.Chemical Division R&D CenterCheil Industries Inc.Euiwang-si, Kyonki-doKorea
  2. 2.Department of Chemical EngineeringKorea Advanced Institute of Science and TechnologyYusong-gu, TaejonKorea

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